Question

Железо составляет 90% сплава,остальное-никель.Сколько килограммов железа и никеля содержится в составе сплава массои 51 кг.

Answer 1

1) 90% = 0,9 
    51 * 0.9 = 45,9 (кг) - железо
2) 100% - 90% = 10% (никеля)
     10% = 0,1 
     51 * 0,1 = 5,1 (кг) никеля
ИЛИ
2) 51 - 45,9 = 5,1 (кг) никеля

Answer 2

Calculating the Amount of Iron and Nickel in the Alloy

To calculate the amount of iron and nickel in the alloy, we can use the information that iron makes up 90% of the alloy, and the rest is nickel. We are given that the total mass of the alloy is 51 kg.

Step 1: Calculate the Amount of Iron: Using the fact that iron makes up 90% of the alloy, we can calculate the amount of iron in the alloy. 90% of 51 kg = 0.90 * 51 kg = 45.9 kg

Step 2: Calculate the Amount of Nickel: Since the rest of the alloy is nickel, we can calculate the amount of nickel by subtracting the amount of iron from the total mass of the alloy. 51 kg - 45.9 kg = 5.1 kg

Therefore, the alloy contains 45.9 kg of iron and 5.1 kg of nickel.

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